22270423 has 4 divisors (see below), whose sum is σ = 25451920. Its totient is φ = 19088928.

The previous prime is 22270403. The next prime is 22270427. The reversal of 22270423 is 32407222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22270423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22270394 and 22270403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22270427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590738 + ... + 1590751.

It is an arithmetic number, because the mean of its divisors is an integer number (6362980).

Almost surely, 2^22270423 is an apocalyptic number.

22270423 is a deficient number, since it is larger than the sum of its proper divisors (3181497).

22270423 is an equidigital number, since it uses as much as digits as its factorization.

22270423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181496.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 22270423 is about 4719.1549031580. The cubic root of 22270423 is about 281.3473455295.

Adding to 22270423 its reverse (32407222), we get a palindrome (54677645).

The spelling of 22270423 in words is "twenty-two million, two hundred seventy thousand, four hundred twenty-three".